Your taxi company should start in the middle ages and gradually develop for 1500 years.
A friend from Türkiye told me in his village they take turns taking everyone's cows to pasture every morning and back home at the end of the day. Some homes are abandoned, people died, the gates are open, the cows still living there just join the heard and go back home at the end of the day.
Horses or dogs should be able to learn to walk from A to B if they get food there. If you don't pay them they should eventually refuse (specially if it is you again) and require some payment in advance. Younglings can be tied to the cart. I think they will know their route eventually.
You could even have a Musk like figure promising it will work next year for the first few decades.
A friend from Türkiye told me in his village they take turns taking everyone's cows to pasture every morning and back home at the end of the day. Some homes are abandoned, people died, the gates are open, the cows still living there just join the heard and go back home at the end of the day.
Horses or dogs should be able to learn to walk from A to B if they get food there. If you don't pay them they should eventually refuse (specially if it is you again) and require some payment in advance. Younglings can be tied to the cart. I think they will know their route eventually.
You could even have a Musk like figure promising it will work next year for the first few decades.